Reznor RECC Unit Installation Manual - Manual (Page 25)

Form I-MAPSIII&IV, P/N 222917R9, Page 25
Gas
Supply Entrance
Limit Control
Control Panel Assy
Heat Exchanger Assembly
FIGURE 11D - Duct Furnace Curb Heater Operation
Control Panel
Assembly
Circuit Board,
P/N 195573
Pressure
Switch,
P/N 196362
Transformer
Limit Control,
P/N 148588
Control Status - Green LED
Steady ON Normal Operation, No call for heat
Fast Flash Normal Operation, Call for heat
1 Flash System Lockout, Failed to detect or sustain flame
2 Flashes Pressure Switch in Open Position
3 Flashes High Limit Switch Open
4 Flashes Pressure Switch is closed before venter is energized
Steady Off Internal Failure - Replace the ignition control module
Flame Status - Yellow LED
Steady On Flame is sensed
Slow Flash Weak Flame
Fast Flash Undesired Flame
Fan Delay to OFF
Switch (DIP Switch
Settings - selected
prior to call for heat)
SW1 SW2 Fan Delay To OFF (seconds)
OFF OFF 120
OFF ON 90
ON OFF 160 (Factory Preset)
ON ON 45
FIGURE 11E - Circuit Board LED Codes
LED Lights
5.4.4 Roof Curbs - MAPS ® III Models RCB, RDB, RDCB, RDDB, RECB, REDB Cabinet Size D
FIGURE 12A - Option CJ3 Roof Curb Components and Layout
2x6 Wood
Nailer
Insulation
1-5/8”
(41mm)
4”
(102mm)
16”
(406mm)
Cross-section
of curb rail Layout and
Components
1
2
3 4 5
8
6
7
10
9
Unit Airflow
Discharge Duct Opening
Return Air
Duct Opening
There are two sizes of curbs for MAPS ® D Cabinet units. Verify that the curb package
received matches the unit. Check components against the applicable list .
Components
Option CJ3
Roof Curb
Packages for
MAPS ® III for D
Cabinet Sizes
Code Component Description Pkg P/N
223041 - All
RCB, RDB,
RECB &
REDB and
RDCB &
RDDB w/
Heat Sctn
500, 600,
700, 800
Qty P/N Pkg P/N
223042 -
RDCB &
RDDB
w/Heat
Section
1000, 1200,
1400, 1600
Qty P/N
1 Rail Side Support Channel 4 222068 4 222068
2 Curb Corner Support Angle 4 222069 4 222069
3 Curb Cross Support 8 222072 8 222072
4 Cross Support Splicing Brckt 4 222073 4 222073
5 Curb Rail End 2 222899 2 222899
6 Curb Side Rail Section 6 222900 4 222900
7 Curb Side Rail Section -- N/A 2 222901
8 Discharge Duct Side Support 2 255637 2 255637
9 Return Air Duct End Support 1 255638 1 255638
10 Return Air Duct Side Support 2 255639 2 255639